Attachment for tractors



Inventor Oliver W /O May 29, 1928.

O. W. JOHNSON ATTACHMENT FOP. TRACTORS Original Filed March 16. 1922Patented May 29, 1928.

ATTACHMENT- son rnAoroRs;

'O'niginalrapplication:fileclilvlarchz 16; 1-922, S'eriaLNo. 54 L222.Dividedand this application filedAugust 6,

12924; serial no. 720,547; V

application filed h/LaDClIL 16, 1922;, Serial No;

While GOHWBHlGHlJ. and] practical structure embodying: my inwentisc ideais illustrated; in the drawings accompanying and: forming a part o'lithis application wherein; Fig; 1' isside elevation at the forward end:of at tnacte'r hauling-j my improvements applied: thereto; Fig. 2; is: ahront: elevation of the same; Figs; 3 mlfiirl: are detail views of oneforimet' the auxiliary crank; and: Fig. 5 is an enlarged detailview. ohthe cranks-up poiitringa biiac set The tiracton which l have chosen forpurposes of illustration is of the geneiial type: hamin-gr a rafdialton11 at the forward end,an

engine 2 inhhe' rear thereozli having aacraink case a1 t1:ansvense ii-ma axle 4t carryingthe 1O lC lnV7l1'8GiS 5I '55: and; a, wonln'pulley6 at one side operaitedl by the engine independeently of the propulsionwheels, the latter not being shown; The engine is. started by. means of:a longitudinal crank. 'Z pro ecting from beneath the radiator 1 in thewell, lmoumi manner; lVithcth'is tractor. hhaive shown an attachment forsawing firewood, builders lumber, e-tc., comprising essentially a pair,of; sills 8''8' s'ecuiiecl to opposite sides of the tractorbody andprojecting forwardly of the radiator at a point above the crank l.Suitably mounted upon these sills is a transverse arbor 9 having thereona driw ing pulley 10 which is connected by a belt 11 to the work pulley6. Carried by this arbor is a circular saw 12 and carried by the sillsis a suitable saw table 13 co-operating therewith. though it will beunderstood that I do not limit myselfto a sawing attachment but presentthe same merely as typical of any type of work performing mechanismsince a corn sheller, barley cutter, cement mixer, H

tool grinder or other work-performing tools could equally be employed.

These sills are connected together by suitable cross pieces 1 l-14 andtogether constitute a frame whichmay take any one of many di-lterentfornisyall ot whichfare similar in respect of thetact'that theyim pedcaccess-to the staiitin'gcnank 7:. I there fore provide a supplemental?starting crank consisting; of 21-3 long shank or stem l5 hav ing a-:handle 16 at its forward end and: pro nided at its rear endwithprovisions for detachahly engaging the crank7 in operating relation-b1111 the present embodiment this provision. comprises an oli set orspirally; toizmcch open hook 17. so arranged: that if the supplementalicrank be supported: lon-gitudii-v nally 'oii the attachment and thenmenely turned in the usual. mannen-r-it startingan.

engine the spirally formed hookwill: engagethe shank and handle memberof the crank 7 s as clearly shown in, Fig. h andwilil'impart thenecessary rotation thereto. When in; use.- the shank oi the supplementalcrank aligns with. the shank of the crank 7 and thehook 17; should bejustlargeenough to engagethe crank 7 as described: and? maintain. itsaxial alignment.

Y For supporting the forward end of said" crank I provide asuitable-hanger 20 :depending from; the forward end of the and: in; theform. here shown",comprising a' centsallU-shaped' portion Q'l'adaptecltov re cei-ve in. rotatable anaemia shank I5. and? terminatinginoutwardly spreading arms suspen'dedr'to the frame at the point 22; Forholdingthe shank: 151 in; this U shaped' bearing I have p ionicle dlkeeper 2-3 recipr'o'cabletlirou-gh suitahle'. aperturesin the 1ipper:side of the Uggthe outer end of this pin.

as shown at 25 and terminating in an upstanding stop member 26 adaptedto limit the reciprocation of thepin andthus prevent its loss whilepermitting suflicient movementot the same to enable the insertion andwithdrawal of the supplemental crank. When the supplemental crank is notin use I preferably rotate the bracket 20- about its suspending boltsand secure it out of arms reach by means of a suitable hook 27 securedto one of the cross members of the frame; and the crank can be disposedof in any'desired manner preferably by suspend ing it lengthwise of oneof the sills bysuitable hooks 28 as shown in Fig. 2, whereupon thehandle 16 may'conveniently take the position shown in dotted lines inFig. l.

It will be understood that many changes a '90 being then; bent dbwnwairdlyas shown at- 24;; i

then passing horizontally: beneath the: recess of sills, work-performingand wo-rlrsupport- .ing mechanism carried by said sills, means forrigidly securing said .SlllS to the opposite sides of a self propelledtractor to project forwardly therefrom at a level above its cranl abearing carried by said sills near theforward ends thereof, asupplemental starting crank having a stem adapted to be ro-tatablyfitted within said bearing and having means at its rear end to engagesaid first mentioned crank in operating relation, and power transmissionmeans connecting said work-performing devices to a more dis 7 tant partof, the tractor engine.

2. In an attachment for self-propelled tractors of the typehaving astarting crank at the forward end, the combination of a pair of sills,worlcperforming and work-supporting mechanism carried by said sills,means for rigidl 1 seem-in said sills to the o 3 nosite side of. a selfpropelled tractor at a level "aoove its crank, a hanger carried by thefor ward ends of said sills and projecting substantially into linewithsaid first mentioned crank, said hanger being formed with a bearinghaving an open side, a supplemental starting crank having a stem adaptedto be rotatably fitted in said bearing and provided at its rearend withmeans to engage said first mentioned crank in operating relation, andmeans for securing said supplemental crank detachably in said bearing.

3. In an attachment for self-propelled tractors of the type having astarting crank at the forward end, in combination, a frame adapted forattachment to the forward end of a self propelled tractor above itsstarting crank, work-performing mechanism carried by said frame, asupplemental starting crank having its rear end formed to engage saidfirst crank in operating relation, a supplemental bearing carried by theforward end of said frame adapted to receive said between saidwork-performing mechanism i and a part of the tractor engine other thansaid starting crank, and a supplemental starting member journaled tosaid frame and formed at its rear end to engage said vfirst startingcrank infloperating relation.

5. An attachment for self-propelled tractors of the type having alongitudinal starting crank at its forward end and a transverse workpulley at one side, comprising a frame, means for rigidly securing saidframe to the front of said tractor above said starting crank,work-performing mechanism carried by saidiframe and con'ipri'singatransverse pulley adapted to be bolted to said first pulley, and asupplemental starting crank journaled to said frame and adaptedrtoengage said first starting crank in opera ing relation.

6. An attachment for self-propelled tractors comprising an independentframe adapted for attachment to the forward end of the tractor above itscrank, and a supplemental crank journaled to said frame and having atits'rear end a spirally formed hook adapt ed to engage the first crank1n operating re-' lation.

In testimony whereof, I hereunto affix my I signature.

o ivnR w. JOHNSON.

